body {
    background-color: #f1f1f1;
    font-family: "微软雅黑";
}

li {
    list-style: none;
}

a {
    text-decoration: none !important;
    color: #4f4f4f;
}

a:hover {
    color: #4f4f4f;
}

.top {
    z-index: 999;
}

.color {
    color: rgba(105, 105, 105, 0.56);
}
.float_left{
    float: left !important;
}
.float_right{
    float: right !important;;
}
.padding0{
    padding:0 !important;
}
.index_header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: #31333a;
    height: 50px;
    overflow: hidden;
}

.index_header_logo {
    height: 100%;
    float: left;
    background: url("../img/index1logo.png") 13px 13px no-repeat;
    width: 50px;
    background-size: 50% 50%;
}

.logo_titel {
    background: url("../img/index_logo_itel.png") 0 15px no-repeat;
    width: 120px;
    background-size: 90px auto;
}

.index_header_index {
    color: #fff;
    line-height: 50px;
    padding:0 30px;
    float: left;
    border-left: 1px solid #29282e;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    cursor: hand;
    position: relative;
}

.index_header_index input{
    height: 30px;
    width: 250px;
    padding:0 8px;
    border-radius: 15px;
    outline: none;
    color: #4f4f4f;
    padding-right: 35px;
}

.index_header_index span{
    display: block;
    width: 30px;
    height: 30px;
    position: absolute;
    top: 15px;
    right: 0px;
    background: url('../img/search (2).png') 0 0 no-repeat;
    background-size: 24px auto;
    z-index: 999;
}

.index_header_right {
    float: right;
    background: url('../img/default_handsome.png') 25px 10px no-repeat;
    width: 80px;
    height: 100%;
    background-size: 40%;
    border-left: 1px solid #29282e;
}

.index_header_mas {
    position: fixed;
    top: 50px;
    right: 0;
    width: 200px;
    height: 280px;
    background-color: #fff;
    -webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, .2);
            box-shadow: 0 1px 3px rgba(0, 0, 0, .2)
}

.index_header_mas_top {
    height: 100px;
    width: 100%;
    background: url('../img/default_handsome.png') center 10px no-repeat;
    background-size: 30%;
    text-align: center;
    border-bottom: 1px solid #f1f1f1;
}

.index_header_mas_top p {
    font-size: 14px;
    padding-top: 75px;
}

.mas {
    padding: 10px 10px 0 10px;
    text-align: center;
    overflow: hidden;
}

.mas li {
    float: left;
    width: 60px;
    height: 60px;
    font-size: 12px;
}

.mas li .color {
    font-size: 16px;
    margin: 5px 0;
}

.mas li:hover {
    background-color: #f5f5f5;
}

.login_o {
    width: 100%;
    height: 40px;
    background-color: #f5f5f5;
    text-align: center;
    line-height: 40px;
    color: #4f4f4f;
}

.navs {
    width: 50px;
    position: fixed;
    top: 50px;
    bottom: 0px;
    left: 0;
    background-color: #4a5064;
}

.nav_switch {
    color: #f1f1f1;
    height: 30px;
    width: 100%;
    text-align: center;
    padding-top: 5px;
    font-size: 10px;
    font-weight: normal;
}

.nav_t {
    color: #fff;
    padding-left: 15px;
    background-color: #42485b;
    height: 30px;
    line-height: 30px;
}
.nav_t_title{
    font-size: 12px;
    font-weight: 700;
}
.nav_t_son{
    color: #fff;
    background-color: #333744;
    margin-bottom: 0;
    padding-left:0;
}
.nav_t_son li{
    font-size: 10px;
    font-weight: normal !important;
    line-height: 30px;
    height: 30px;
    padding-left:15px;
}
.nav_t_son li:hover{
    background-color: #4a5064;
}
.nav_t_son li:nth-child(3){
    margin-left: -2px;
}

.nav_t_son .nav_t_title{
    margin-left: 8px;
    font-weight: normal;
}
.nav_t_son li:nth-child(3) .nav_t_title{
    margin-left: 10px;
}